220 server is not acceptin connections

Hi guys,

Looked though the site and have seen similar questions, havent been able to resolve the issue with the answers though.

Have a client that not been able to send emails to AOL addresses (aomgst some others), this has only been for the last two weeks or so, as they were able before, They are using Exachnge 2003 and are on a BT connection, we have RDNS setup for our domain, and i have checked DNSBL.info for spam listings, they were on Five-Ten.SRC but this was removed a few says back now.

when using SMTPDiag I get the following results
***********************
C:\SmtpDiag>SmtpDiag.exe user@mydomain.com user@aol.com

Searching for Exchange external DNS settings.
Computer name is your-computer.
VSI 1 has the following external DNS servers:
There are no external DNS servers configured.

Checking SOA for aol.com.
Checking external DNS servers.
Checking internal DNS servers.
SOA serial number match: Passed.

Checking local domain records.
Checking MX records using TCP: yourdomain.com.
Checking MX records using UDP: yourdomain.com.
Both TCP and UDP queries succeeded. Local DNS test passed.

Checking remote domain records.
Checking MX records using TCP: aol.com.
Checking MX records using UDP: aol.com.
Both TCP and UDP queries succeeded. Remote DNS test passed.

Checking MX servers listed for user@aol.com.
Connecting to mailin-04.mx.aol.com [64.12.138.57] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-04.mx.aol.com.
Connecting to mailin-04.mx.aol.com [64.12.138.88] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-04.mx.aol.com.
Connecting to mailin-03.mx.aol.com [205.188.252.17] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-03.mx.aol.com.
Connecting to mailin-03.mx.aol.com [64.12.138.153] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-03.mx.aol.com.
Connecting to mailin-02.mx.aol.com [64.12.137.89] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-02.mx.aol.com.
Connecting to mailin-02.mx.aol.com [205.188.155.72] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-02.mx.aol.com.
Connecting to mailin-02.mx.aol.com [64.12.138.120] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-02.mx.aol.com.
Connecting to mailin-01.mx.aol.com [64.12.139.249] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-01.mx.aol.com.
Connecting to mailin-01.mx.aol.com [205.188.159.57] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-01.mx.aol.com.
Connecting to mailin-04.mx.aol.com [205.188.159.216] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-04.mx.aol.com.
Connecting to mailin-03.mx.aol.com [205.188.109.56] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-03.mx.aol.com.
Connecting to mailin-02.mx.aol.com [205.188.249.91] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-02.mx.aol.com.
Connecting to mailin-01.mx.aol.com [205.188.156.248] on port 25.
Error: Expected "220". Server is not accepting connections.
Failed to submit mail to mailin-01.mx.aol.com.
C:\SmtpDiag>
***************************
I have seen resolutions of creating a seperate SMTP connector for aol addresses but this does not seem to have worked, maybe im doing it incorrectly,

ESM - Connectors - New SMTP Connector -  Forward all mail to this connector (mail.biconncet.com) - add my mail server as local bridgehead - outbound security annoymouse (as stated by article on support forum - add address space of aol.com cost of 1 - not sure if im suppose to tick allow messages to be routed to these domains but i did... - restarted MS Exchange Info Store, Route Eng and Sys Attendant services.

After doing this ive ran the SMTP Diag and still get the same issue.

any help would be greatly appreciated.

Thanks
-Adrian-Asked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Exchange_GeekCommented:
Why not perform a simple telnet test to the MX record of AOL - what is the result ???
Also, do you have any Cisco router between you and the internet ???
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
-Adrian-Author Commented:
Sorry forgot to say tried that, connetion drops straight away.
***************
554- (RTR:BB)  http://postmaster.info.aol.com/errors/554rtrbb.html
554  Connecting IP: 81.136.142.92

Connection to host lost.
****************
0
-Adrian-Author Commented:
Okay, is it stupid of me to assume that because we anre not on any RBL that we would not be BL by AOL? or do they use their own one?
0
-Adrian-Author Commented:
Okay spoken with Bt who are going to contact AOL to Whitelist us, as i found this via telnet session and the fact that he was the first/only person to help with the issue will award points to Exchange Geek..

thanks for your help.
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Exchange

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.